Foddy announced the bonus in mid-November during the Sportsfriends funding drive, saying he planned to use the iOS code for the multiplayer game and tweak its controls to support gamepads. But in announcing the release today, Foddy said he rebuilt QWOP in Unity with 3D graphics and new controls. Each analog stick controls one side of the avatar's body; rotating them both clockwise is the way to go, but you'll have to time it correctly.
The multiplayer QWOP is available on Windows PC, Mac and Linux; Foddy has tested the PC and Mac versions with both Xbox 360 and PlayStation 3 controllers. On Linux, said Foddy, "Things are a bit rougher, since Unity's Linux support is so new — there isn't any configurator, so your gamepad may not map both analog sticks to the right parts of QWOP's body."
The original single-player version of QWOP is playable for free on Foddy's website.